Hi everyone, here's my rendition of carina in a 2x2 pano. First image I'm happy with in over a year. Took about 2 months and a fair bit of hair pulling.
I'm still not sure how to upload larger files on iceinspace
higher res image:
https://www.astrobin.com/1il5z4/
acquisition data:
550mm esprit
starlight xpress sx814 mono
astrodon 3nm, 5nm filters
ASA direct drive DDM85 mount
Eric Fogerty memorial observatory on the Darling Downs, SE QLD
Each 2x2 frame consisting of
Ha=O=30 x 900s
R,G,B 30 x 300s.
flats, bias, darks 30 each
Pixinsight: WBPP for all, then,
colour data: dynamic crop, channel combination, DBE, background neut, colourcalibration, multiscale linear transform, masked stretch.
For Ha and Oiii: dynamic crop, DBE, multiscale linear transform, masked stretch. Pixelmath combination of RGB with 20% Ha in red, then made a colour image (with synthetic green at 50/50 Ha and O), then added the images as layers in PS. Narrowband layer on top with lum at 15%. Mopped up some hot pixels that WBPP didn't sieve out, then put it through topaz denoise and sharpen AI
